Clark on the Amount of Difference That Should Characterize Species and Subspecies
Clark, Hubert Lyman, 1870-1947
Article
1905
The Auk
22
429--434
BioStor
English
Washington, D.C, American Ornithologists' Union, etc, 1884-
BioStor: https://biostor.org/reference/123281 DOI: https://doi.org/10.2307/4070033
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